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IBM/Red Hat/Fedora Leftovers

Submitted by Roy Schestowitz on Thursday 9th of September 2021 04:34:02 PM Filed under
Red Hat
  • 8 Linux virsh subcommands for managing VMs on the command line | Enable Sysadmin

    The virtual shell, or virsh, is a flexible command-line utility for managing virtual machines (VMs) controlled by libvirt, which is a toolkit and API to manage virtualization platforms. It's the default management tool for Linux kernel-based virtual machines (KVMs), and it also supports Xen, VMware, and other platforms.

    The virsh command allows you to manage VMs interactively or in batch. It's also helpful for controlling VMs from the Linux shell and integrates with scripts or automation tools. By using virsh, you can quickly connect to a server using secure shell (SSH) and perform operations on your VMs without access to a graphical interface.

    When you run virsh without any options, it tries to connect to a local hypervisor. For Linux, the default connection points to a local QEMU system to manage local KVM machines. You can also connect to a remote hypervisor by using the option -c or --connect and specifying the Uniform Resource Identifier (URI) of the remote hypervisor using libvirt's syntax. For more information, consult libvirt's URI specification.

    By default, virsh provides hundreds of subcommands and options that allow you to manage every aspect of your virtualization platform or VMs. In this article, I'll share the eight virsh subcommands I use most often. Due to the nature of daily work, most of these subcommands apply directly to VMs (or domains in libvirt terminology) but virsh also has commands to manage the platform itself, such as adding storage pools, networks, and more.

  • Change management: 3 strategies for staying power | The Enterprisers Project

    I once led a design organization where the relationships between colleagues were strong, politics were minimal, and the work was interesting and plentiful. But there was a problem: Everyone was so consumed with their own projects that they did not take the time to benefit from each other’s expertise and perspective. Everyone agreed that they needed a way to share work with one another.

    One of our senior team members proposed a solution that sounded promising: We would dedicate a wall in the workspace as a sharing space where people could post their work and others could comment freely. Everyone agreed it was a good idea. The champion of the idea even set it up and showed everyone how to use it.

    We had a solution with both buy-in and communication. Perfect, right?

    You’ve probably already guessed the answer. The first week, one person took the step of posting their work. A couple of people commented on it, and they were congratulated for opening collaboration. By the second week, though, the wall was empty. By the third, it was covered in comic strips and ironic notes.

  • Fedora Community Blog: Contribute at the Fedora Linux 35 Test Week for Kernel 5.14

    The kernel team is working on final integration for kernel 5.6. This version was just recently released, and will arrive soon in Fedora. As a result, the Fedora kernel and QA teams have organized a test week from Sunday, Sept 12, 2021 through Sunday, Sept 19, 2021. Refer to the wiki page for links to the test images you’ll need to participate. Read below for details.

  • Hey Linux user, let’s talk about Fedora 35 and GNOME 41 - itsfoss.net

    Fedora is one of the best known and most popular Linux distributions. This Fedora distro is developed by the community and has the support of the Red Hat company, which guarantees us excellent support and that we will always be up-to-date in terms of updates and patches. Although Fedora 35 default desktop is GNOME 41, we can find flavors with other preconfigured desktops thanks to its Spins. Like any other system, this distro is constantly evolving, adding new functions and features. And, as part of this evolution, today we can know what the new Fedora 35 will be like.

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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